Cleanup various Sonar warings

Unused code, imports, etc.

Change-Id: Icb19d6a877d5ddbfd85caa86c4e62880e4db3c44
Signed-off-by: Marek Gradzki <mgradzki@cisco.com>

9 files changed, 10 insertions, 69 deletions

diff --git a/infra/data-impl/src/main/java/io/fd/honeycomb/data/impl/ModifiableDataTreeManager.java b/infra/data-impl/src/main/java/io/fd/honeycomb/data/impl/ModifiableDataTreeManager.java
index dfb053fa0..48b9e7913 100644
--- a/infra/data-impl/src/main/java/io/fd/honeycomb/data/impl/ModifiableDataTreeManager.java
+++ b/infra/data-impl/src/main/java/io/fd/honeycomb/data/impl/ModifiableDataTreeManager.java
@@ -18,15 +18,13 @@ package io.fd.honeycomb.data.impl;
 
 import static com.google.common.base.Preconditions.checkNotNull;
 import static com.google.common.util.concurrent.Futures.immediateCheckedFuture;
-import static org.apache.commons.lang3.builder.ToStringStyle.MULTI_LINE_STYLE;
 
 import com.google.common.base.Optional;
 import com.google.common.util.concurrent.CheckedFuture;
-import io.fd.honeycomb.data.ModifiableDataManager;
 import io.fd.honeycomb.data.DataModification;
+import io.fd.honeycomb.data.ModifiableDataManager;
 import io.fd.honeycomb.translate.TranslationException;
 import javax.annotation.Nonnull;
-
 import org.apache.commons.lang3.builder.RecursiveToStringStyle;
 import org.apache.commons.lang3.builder.ReflectionToStringBuilder;
 import org.opendaylight.controller.md.sal.common.api.data.ReadFailedException;
diff --git a/infra/data-impl/src/main/java/io/fd/honeycomb/data/impl/ReadWriteTransaction.java b/infra/data-impl/src/main/java/io/fd/honeycomb/data/impl/ReadWriteTransaction.java
index a746f1246..f2301d77a 100644
--- a/infra/data-impl/src/main/java/io/fd/honeycomb/data/impl/ReadWriteTransaction.java
+++ b/infra/data-impl/src/main/java/io/fd/honeycomb/data/impl/ReadWriteTransaction.java
@@ -20,9 +20,9 @@ import com.google.common.base.Optional;
 import com.google.common.base.Preconditions;
 import com.google.common.util.concurrent.CheckedFuture;
 import com.google.common.util.concurrent.ListenableFuture;
+import javax.annotation.Nonnull;
 import org.apache.commons.lang3.builder.RecursiveToStringStyle;
 import org.apache.commons.lang3.builder.ReflectionToStringBuilder;
-import org.apache.commons.lang3.builder.ToStringStyle;
 import org.opendaylight.controller.md.sal.common.api.TransactionStatus;
 import org.opendaylight.controller.md.sal.common.api.data.LogicalDatastoreType;
 import org.opendaylight.controller.md.sal.common.api.data.ReadFailedException;
@@ -37,10 +37,6 @@ import org.opendaylight.yangtools.yang.data.api.schema.NormalizedNode;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
-import javax.annotation.Nonnull;
-
-import static org.apache.commons.lang3.builder.ToStringStyle.MULTI_LINE_STYLE;
-
 /**
  * Composite DOM transaction that delegates reads to a {@link DOMDataReadTransaction} delegate and writes to a {@link
  * DOMDataWriteTransaction} delegate.
diff --git a/infra/data-impl/src/test/java/io/fd/honeycomb/data/impl/DataBrokerTest.java b/infra/data-impl/src/test/java/io/fd/honeycomb/data/impl/DataBrokerTest.java
index f1bc3105a..4a0fb11a9 100644
--- a/infra/data-impl/src/test/java/io/fd/honeycomb/data/impl/DataBrokerTest.java
+++ b/infra/data-impl/src/test/java/io/fd/honeycomb/data/impl/DataBrokerTest.java
@@ -22,9 +22,9 @@ import static org.mockito.Mockito.verify;
 import static org.mockito.Mockito.when;
 import static org.mockito.MockitoAnnotations.initMocks;
 
-import io.fd.honeycomb.data.ReadableDataManager;
-import io.fd.honeycomb.data.ModifiableDataManager;
 import io.fd.honeycomb.data.DataModification;
+import io.fd.honeycomb.data.ModifiableDataManager;
+import io.fd.honeycomb.data.ReadableDataManager;
 import java.util.Map;
 import org.junit.Before;
 import org.junit.Test;
@@ -36,7 +36,6 @@ import org.opendaylight.controller.md.sal.dom.api.DOMDataBrokerExtension;
 import org.opendaylight.controller.md.sal.dom.api.DOMDataChangeListener;
 import org.opendaylight.controller.md.sal.dom.api.DOMDataReadOnlyTransaction;
 import org.opendaylight.controller.md.sal.dom.api.DOMDataReadWriteTransaction;
-import org.opendaylight.controller.md.sal.dom.api.DOMDataWriteTransaction;
 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier;
 
 public class DataBrokerTest {
@@ -69,7 +68,7 @@ public class DataBrokerTest {
 
     @Test
     public void testNewWriteOnlyTransaction() {
-        final DOMDataWriteTransaction writeTx = broker.newWriteOnlyTransaction();
+        broker.newWriteOnlyTransaction();
 
         // verify that write transactions use config snapshot
         verify(confiDataTree).newModification();
diff --git a/infra/data-impl/src/test/java/io/fd/honeycomb/data/impl/PersistingDataTreeAdapterTest.java b/infra/data-impl/src/test/java/io/fd/honeycomb/data/impl/PersistingDataTreeAdapterTest.java
index ed3529530..7e135a259 100644
--- a/infra/data-impl/src/test/java/io/fd/honeycomb/data/impl/PersistingDataTreeAdapterTest.java
+++ b/infra/data-impl/src/test/java/io/fd/honeycomb/data/impl/PersistingDataTreeAdapterTest.java
@@ -135,8 +135,7 @@ public class PersistingDataTreeAdapterTest {
     public void testPersisterCreateFile() throws Exception {
         // Delete to test file creation
         Files.delete(tmpPersistFile);
-        final PersistingDataTreeAdapter.JsonPersister jsonPersister =
-                new PersistingDataTreeAdapter.JsonPersister(tmpPersistFile, schemaService);
+        new PersistingDataTreeAdapter.JsonPersister(tmpPersistFile, schemaService);
         assertTrue(Files.exists(tmpPersistFile));
    }
 }
\ No newline at end of file
diff --git a/infra/it/memory-benchmark/src/main/java/io/fd/honeycomb/benchmark/memory/BenchmarkFilesProvider.java b/infra/it/memory-benchmark/src/main/java/io/fd/honeycomb/benchmark/memory/BenchmarkFilesProvider.java
index ab2705947..403edaee1 100644
--- a/infra/it/memory-benchmark/src/main/java/io/fd/honeycomb/benchmark/memory/BenchmarkFilesProvider.java
+++ b/infra/it/memory-benchmark/src/main/java/io/fd/honeycomb/benchmark/memory/BenchmarkFilesProvider.java
@@ -16,18 +16,16 @@
 package io.fd.honeycomb.benchmark.memory;
 
 
-import org.apache.commons.csv.CSVFormat;
-import org.apache.commons.csv.CSVPrinter;
-import org.slf4j.Logger;
-
-import javax.annotation.Nonnull;
 import java.io.IOException;
 import java.nio.file.Files;
 import java.nio.file.Path;
 import java.nio.file.Paths;
 import java.util.Arrays;
 import java.util.Collections;
-import java.util.function.Supplier;
+import javax.annotation.Nonnull;
+import org.apache.commons.csv.CSVFormat;
+import org.apache.commons.csv.CSVPrinter;
+import org.slf4j.Logger;
 
 public interface BenchmarkFilesProvider {
 
diff --git a/infra/minimal-distribution-core/src/main/java/io/fd/honeycomb/infra/distro/activation/ActiveModuleProvider.java b/infra/minimal-distribution-core/src/main/java/io/fd/honeycomb/infra/distro/activation/ActiveModuleProvider.java
index a373bf636..643af16d2 100644
--- a/infra/minimal-distribution-core/src/main/java/io/fd/honeycomb/infra/distro/activation/ActiveModuleProvider.java
+++ b/infra/minimal-distribution-core/src/main/java/io/fd/honeycomb/infra/distro/activation/ActiveModuleProvider.java
@@ -16,25 +16,14 @@
 
 package io.fd.honeycomb.infra.distro.activation;
 
-import com.google.common.collect.ImmutableList;
 import com.google.inject.Inject;
 import com.google.inject.Module;
 import com.google.inject.Provider;
 import io.fd.honeycomb.infra.distro.schema.ResourceLoader;
-
-import java.io.File;
-import java.io.IOException;
-import java.net.URI;
-import java.net.URISyntaxException;
-import java.net.URL;
-import java.nio.file.Files;
-import java.nio.file.Path;
 import java.util.ArrayList;
-import java.util.Collections;
 import java.util.List;
 import java.util.Set;
 import java.util.stream.Collectors;
-import java.util.stream.Stream;
 import javax.annotation.Nonnull;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
@@ -85,14 +74,6 @@ public class ActiveModuleProvider implements Provider<ActiveModules>, ResourceLo
         return new ArrayList<>(loadResourceContentsOnPath(relativePath));
     }
 
-    private static Stream<File> folderToFile(final URI uri) {
-        final File[] files = new File(uri).listFiles(File::isFile);
-
-        return files != null
-                ? ImmutableList.copyOf(files).stream()
-                : Collections.<File>emptyList().stream();
-    }
-
     private static boolean filterNonModules(final Class<?> clazz) {
         final boolean isModule = Module.class.isAssignableFrom(clazz);
         if (!isModule) {
@@ -102,30 +83,6 @@ public class ActiveModuleProvider implements Provider<ActiveModules>, ResourceLo
     }
 
     /**
-     * Read lines from {@code Path}
-     */
-    private static Stream<String> readLines(final Path path) {
-        try {
-            return Files.readAllLines(path).stream();
-        } catch (IOException e) {
-            LOG.error("Unable to read content of {}", path, e);
-            throw new IllegalStateException("Unable to read content of " + path, e);
-        }
-    }
-
-    /**
-     * Converts {@code URL} to {@code URI}
-     */
-    private static URI toURI(final URL url) {
-        try {
-            return url.toURI();
-        } catch (URISyntaxException e) {
-            LOG.error("Unable to convert {} to uri", url);
-            throw new IllegalStateException("Unable to convert " + url + " to uri", e);
-        }
-    }
-
-    /**
      * Loads class by provided name
      */
     private static Class<? extends Module> moduleNameToClass(final String name,
diff --git a/infra/translate-impl/src/main/java/io/fd/honeycomb/translate/impl/write/registry/FlatWriterRegistry.java b/infra/translate-impl/src/main/java/io/fd/honeycomb/translate/impl/write/registry/FlatWriterRegistry.java
index c3bc1ee0e..d51ece23b 100644
--- a/infra/translate-impl/src/main/java/io/fd/honeycomb/translate/impl/write/registry/FlatWriterRegistry.java
+++ b/infra/translate-impl/src/main/java/io/fd/honeycomb/translate/impl/write/registry/FlatWriterRegistry.java
@@ -34,7 +34,6 @@ import io.fd.honeycomb.translate.write.registry.WriterRegistry;
 import java.util.ArrayList;
 import java.util.Collection;
 import java.util.Collections;
-import java.util.HashSet;
 import java.util.LinkedList;
 import java.util.List;
 import java.util.Map;
diff --git a/infra/translate-impl/src/test/java/io/fd/honeycomb/translate/impl/read/registry/TypeHierarchyTest.java b/infra/translate-impl/src/test/java/io/fd/honeycomb/translate/impl/read/registry/TypeHierarchyTest.java
index bbccc488b..0083fb4ab 100644
--- a/infra/translate-impl/src/test/java/io/fd/honeycomb/translate/impl/read/registry/TypeHierarchyTest.java
+++ b/infra/translate-impl/src/test/java/io/fd/honeycomb/translate/impl/read/registry/TypeHierarchyTest.java
@@ -16,8 +16,6 @@
 
 package io.fd.honeycomb.translate.impl.read.registry;
 
-import static org.hamcrest.CoreMatchers.hasItem;
-import static org.hamcrest.CoreMatchers.hasItems;
 import static org.hamcrest.CoreMatchers.is;
 import static org.junit.Assert.assertEquals;
 import static org.junit.Assert.assertThat;
diff --git a/infra/translate-impl/src/test/java/io/fd/honeycomb/translate/impl/write/registry/FlatWriterRegistryTest.java b/infra/translate-impl/src/test/java/io/fd/honeycomb/translate/impl/write/registry/FlatWriterRegistryTest.java
index 01852d13f..bead06ecf 100644
--- a/infra/translate-impl/src/test/java/io/fd/honeycomb/translate/impl/write/registry/FlatWriterRegistryTest.java
+++ b/infra/translate-impl/src/test/java/io/fd/honeycomb/translate/impl/write/registry/FlatWriterRegistryTest.java
@@ -287,9 +287,6 @@ public class FlatWriterRegistryTest {
 
     @Test
     public void testMutlipleUpdatesWithOneKeyedContainer() throws Exception {
-        final InstanceIdentifier internallyKeyedIdentifier = InstanceIdentifier.create(DataObject1.class)
-                .child(DataObjects.DataObject1ChildK.class, new DataObjects.DataObject1ChildKey());
-
         final FlatWriterRegistry flatWriterRegistry =
                 new FlatWriterRegistry(
                         ImmutableMap.of(DataObject1.IID, writer1, DataObjects.DataObject1ChildK.IID, writer4));